package com.tedu.weibo.controller;

import com.tedu.weibo.common.result.JsonResult;
import com.tedu.weibo.common.result.StatusCode;
import com.tedu.weibo.mapper.UserMapper;
import com.tedu.weibo.pojo.dto.UserLoginDTO;
import com.tedu.weibo.pojo.dto.UserRegDTO;
import com.tedu.weibo.pojo.entity.User;
import com.tedu.weibo.pojo.vo.UserVO;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;
import springfox.documentation.annotations.ApiIgnore;

import javax.servlet.http.HttpSession;
import java.util.Date;
@Api(tags = "用户模块")
@RestController
@RequestMapping("/v1/users")
public class UserController {
    @Autowired
    private UserMapper userMapper;

    //注册
    @ApiOperation("注册")
    @PostMapping("/reg")
    public JsonResult reg(@RequestBody UserRegDTO userRegDTO){
//        System.out.println(userRegDTO);
        String username = userRegDTO.getUsername();
        User findUser = userMapper.selectByUsername(username);
        if(findUser != null){
            return new JsonResult(StatusCode.USERNAME_EXISTS);
        }
        User user = new User();
        BeanUtils.copyProperties(userRegDTO, user);
        user.setCreated(new Date());
        userMapper.insert(user);
        return JsonResult.suceess();
    }
    @ApiOperation("登录")
    //登录
    @PostMapping("/login")
    public JsonResult login(@RequestBody @Validated UserLoginDTO userLoginDTO, @ApiIgnore HttpSession session){
        System.out.println(userLoginDTO);
//        if(userLoginDTO.getUsername()==null||userLoginDTO.getUsername().isEmpty()){
////            throw new RuntimeException("用户名不能为空");
//            throw new IllegalArgumentException("用户名不能为空");
//        }
        User user = userMapper.selectByUsername(userLoginDTO.getUsername());
        if(user != null){
          if(user.getPassword().equals(userLoginDTO.getPassword())){
              session.setAttribute("user",user);
              return JsonResult.suceess();
          }else {
              return new JsonResult(StatusCode.PASSWORD_ERROR);
          }
        }else {
            return new JsonResult(StatusCode.USERNAME_ERROR);
        }
    }

    @ApiOperation("检测登录")
    @GetMapping("/currentUser")
    public JsonResult currentUser(@ApiIgnore HttpSession session){
        User user = (User) session.getAttribute("user");
        if (user == null) {
            System.out.println("未登录！");
            return JsonResult.suceess();
        }
        else {
            System.out.println("欢迎你！");
            UserVO userVO = new UserVO();
            BeanUtils.copyProperties(user, userVO);
            return JsonResult.suceess(userVO);
        }
    }
    @ApiOperation("退出登录")
    @GetMapping("/logout")
    public void logout(@ApiIgnore HttpSession session){
        session.removeAttribute("user");
    }
}
